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Analog Devices Inc. AMP03GSZ
- Part No.:
- AMP03GSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AMP03GSZ.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:312
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Product details
Overview
AMP03GSZ from Analog Devices is a precision unity-gain differential amplifier optimized for high-CMRR instrumentation signal conditioning. It delivers 100 dB typical common-mode rejection, 9.5 V/µs slew rate, and 3 MHz bandwidth in an 8-lead SOIC package, enabling accurate subtraction of sensor signals in industrial current-loop transmitters and data acquisition front-ends.
For engineers reviewing the AMP03GSZ datasheet, AMP03GSZ pinout, AMP03GSZ application, or AMP03GSZ equivalent, this page provides verified electrical specifications, validated SOIC pin mapping, real-world use cases in 4–20 mA systems and precision voltage references, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The AMP03GSZ implements a monolithic thin-film resistor network (25 kΩ matched to better than 0.002%) to achieve stable gain and CMR over temperature without external trimming. Its differential topology rejects common-mode noise while amplifying the voltage difference between +IN and –IN terminals.
It operates from ±6 V to ±18 V supplies, supports ±20 V input voltage range, and maintains 80 dB minimum CMR up to 100 kHz - critical for buffering noisy sensor outputs into ADCs. The S-8 package variant (AMP03GSZ) is rated for –40°C to +85°C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CMRR | 100 dB typical - enables >100× rejection of ground-loop interference in industrial sensor interfaces |
| Slew Rate | 9.5 V/µs - supports fast transient response in absolute-value and summing amplifier circuits |
| Bandwidth | 3 MHz (–3 dB) - sufficient for high-speed current-to-voltage conversion up to 100 kHz signals |
| Offset Voltage | ±750 µV max - ensures sub-millivolt error in precision voltage reference buffer applications |
| Gain Error | 0.008% max - guarantees <10 ppm deviation from unity gain across temperature and supply variations |
| Supply Current | 3.5 mA max - enables low-power operation in battery-backed instrumentation nodes |
| Output Swing | ±13.7 V into 2 kΩ - drives standard industrial analog inputs without external level-shifting |
Pinout & Package
AMP03GSZ is supplied in an 8-lead SOIC (S-8) package measuring 5.00 mm × 4.00 mm × 1.50 mm, with gull-wing leads and JEDEC MS-012AA compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 REFERENCE | Reference voltage input | Set output DC offset; tied to ground or precision reference for level-shifting |
| 2 –IN | Inverting input | Accepts one leg of differential sensor signal; matched impedance critical for CMR |
| 3 +IN | Non-inverting input | Accepts second leg of differential sensor signal; requires symmetrical source impedance |
| 4 –VEE | Negative supply rail | Connects to negative power supply (–6 V to –18 V); decoupling required |
| 5 SENSE | Output sense feedback | Enables Kelvin sensing for improved load regulation in precision reference buffers |
| 6 OUTPUT | Amplified differential output | Drives downstream stages; capable of ±13.7 V swing into 2 kΩ |
| 7 +VCC | Positive supply rail | Connects to positive power supply (+6 V to +18 V); decoupling required |
| 8 NC | No connect | Internally unconnected; must remain floating per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic 25 kΩ thin-film resistor network | Eliminates need for external matched resistors in difference amplifier configurations |
| Thermally symmetric layout | Maintains 0.002% resistor matching over –40°C to +85°C, preserving CMR stability |
| Fast settling (0.01%) | 1 µs - enables high-throughput sampling in multiplexed data acquisition systems |
| Capacitive load drive | Stable with up to 300 pF - supports direct connection to ADC input capacitors or long PCB traces |
| ESD protection | Rated for 4000 V HBM - reduces risk of field failure during handling and assembly |
Applications
| 4–20 mA Current Transmitter | Precision Voltage Reference Buffer |
|---|---|
Use Scenario: Converting sensor output to standardized industrial current loop with galvanic isolation and noise immunity. IC Role / Device Role / Timing Role: Differential amplifier performing I-to-V conversion and common-mode rejection of ground potential differences. Use Value: 100 dB CMRR suppresses ground-loop errors that would otherwise cause >1% span error in 4–20 mA output. | Use Scenario: Stabilizing and buffering a 10 V reference (e.g., REF10) for multi-channel DAC or ADC reference inputs. IC Role / Device Role / Timing Role: Unity-gain buffer with SENSE pin enabling remote-sense compensation for trace resistance drop. Use Value: ±750 µV offset and 0.008% gain error ensure reference accuracy remains within ±0.01% of nominal value. |
| Balanced Line Receiver | Instrumentation Amplifier Front-End |
Use Scenario: Receiving differential audio or sensor signals over twisted-pair cables in electrically noisy factory environments. IC Role / Device Role / Timing Role: High-CMRR receiver rejecting induced EMI on cable shields and common conductors. Use Value: 9.5 V/µs slew rate preserves waveform fidelity for signals up to 100 kHz without distortion. | Use Scenario: Building a 3-op-amp instrumentation amplifier where AMP03GSZ serves as the precision difference stage. IC Role / Device Role / Timing Role: Final-stage differential amplifier delivering accurate (E2 – E1) output with matched internal resistors. Use Value: Eliminates need for 0.01% external resistor matching, reducing BOM cost and thermal drift sensitivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA105AP | Slower slew rate (3 V/µs), lower bandwidth (1.5 MHz), higher offset (±1 mV) | Lower speed; suitable only for DC or sub-100 kHz applications | Select when cost sensitivity outweighs speed requirements and CMR >95 dB is not mandatory |
| AD8273ARZ | Dual-channel, rail-to-rail output, lower CMRR (90 dB typ), no SENSE pin | Lacks remote-sense capability; limited to single-supply or low-voltage systems | Choose for space-constrained dual-channel designs where ±15 V supplies and Kelvin sensing are unnecessary |
Compared with INA105AP and AD8273ARZ, the AMP03GSZ uniquely combines 100 dB CMRR, 9.5 V/µs slew rate, and SENSE-pin-enabled remote sensing - making it the only option among the three qualified for precision 4–20 mA transmitter output stages requiring sub-0.01% gain error and ground-noise immunity.
Availability
AMP03GSZ is available at Aetrix Electronics and suitable for industrial process control, test equipment calibration, and precision analog front-end design requiring stable component supply, long-term lifecycle support, and guaranteed SOIC packaging consistency.
Supply support for AMP03GSZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AMP03 product line was designed specifically for precision differential signal conditioning in instrumentation, industrial automation, and sensor interface applications - emphasizing monolithic resistor matching, thermal stability, and high-speed CMR.
FAQ
What is the operating temperature range for AMP03GSZ?
The AMP03GSZ is specified for operation from –40°C to +85°C, matching the industrial temperature grade of the AMP03G family. This range is validated per the datasheet's "ORDERING GUIDE" and confirmed in the "ABSOLUTE MAXIMUM RATINGS" table for the S-8 package variant. All electrical characteristics for AMP03GSZ - including CMRR, slew rate, and offset voltage - are guaranteed across this full range.
Does AMP03GSZ require external resistors to function as a difference amplifier?
No, AMP03GSZ does not require external resistors to function as a unity-gain difference amplifier. Its monolithic 25 kΩ thin-film resistor network is laser-trimmed and thermally matched, enabling precise (E2 – E1) output directly from the +IN and –IN pins. External resistors are only needed if non-unity gain or custom transfer functions are required - the internal network alone satisfies standard differential amplifier configurations per Figure 2 of the datasheet.
What is the purpose of the SENSE pin on AMP03GSZ?
On AMP03GSZ, the SENSE pin (Pin 5) enables remote-sense feedback for improved output regulation under load. When used with a separate sense trace routed to the load, it compensates for voltage drop across PCB traces or connectors - critical in precision voltage reference buffers (e.g., Figure 4 and 5). Connecting SENSE directly to OUTPUT disables this feature and reverts to local feedback, as confirmed in the "APPLICATION CIRCUITS" section.
Can AMP03GSZ be used with single-supply operation?
No, AMP03GSZ is not designed for single-supply operation. Its input voltage range (±20 V) and output swing (±13.7 V into 2 kΩ) require dual supplies between ±6 V and ±18 V, as stated in the "ABSOLUTE MAXIMUM RATINGS" and "ELECTRICAL CHARACTERISTICS" tables. Attempting single-supply use violates the specified common-mode input range and risks latch-up or undefined behavior - confirmed by the "GENERAL DESCRIPTION" noting its architecture assumes symmetrical rails.
How does the NC (No Connect) pin on AMP03GSZ affect PCB layout?
Pin 8 on AMP03GSZ is designated NC (No Connect) and must remain unconnected - neither grounded nor tied to any net. The datasheet explicitly states "NC = NO CONNECT" in both PDIP and SOIC pin diagrams, and die-level documentation confirms no internal bond wire connects to this pad. Routing or soldering to Pin 8 may introduce parasitic coupling or violate thermal symmetry, degrading CMRR performance as warned in the "MAINTAINING COMMON-MODE REJECTION" section.
AMP03GSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 9.5V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 3 MHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 2.5mA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 12 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AMP03GSZ FAQ
1.How can I place an order for AMP03GSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AMP03GSZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AMP03GSZ reliable?
The price and inventory of AMP03GSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AMP03GSZ is usually 5 days.
3.What payment methods are accepted for AMP03GSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AMP03GSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AMP03GSZ?
AMP03GSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AMP03GSZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AMP03GSZ?
For technical support, including AMP03GSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AMP03GSZ requirements.
6.How does Aetrix verify that AMP03GSZ is sourced from the original manufacturer or authorized distributors?
All AMP03GSZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AMP03GSZ meets industry standards.
7.What is the process for return or replacement of AMP03GSZ?
All AMP03GSZ units undergo pre-shipment inspection (PSI). If there is an issue with AMP03GSZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AMP03GSZ part is unused and in its original packaging.
Return procedure for AMP03GSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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